MSD / Merck Manuals

The MSD and Merck Manuals Professional Version offers a medical reference across clinical specialties. Explore disease presentations, diagnosis, treatment and procedures, with explanatory articles and practical resources for healthcare professionals.

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Covers
Broad medical reference covering diseases, diagnosis, treatment and procedures across specialties; an editorial reference rather than a guideline authority.
Region
Global; US-based editorial reference
Language
Multiple languages
Access
Public full text

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Public access to these sites was last checked on October 28, 2026.